Forecasters are closely monitoring a tropical wave that is moving westward across the Atlantic Ocean.
Invest 97-L is packing 30 mph winds and moving west-northwestward at 20 mph.
Officials with the National Hurricane Center give the system a 90 percent chance of development.
Forecasters said Invest 97-L is expected to stay south of Puerto Rico and Hispaniola. It could strike Trinidad and Tobago or Aruba.

ATLANTA —

Forecasters are closely monitoring a tropical wave that is moving westward across the Atlantic Ocean.